Thursday: The day in photos

Aliosha Marquez / Associated Press

Police use tear gas and water cannons to scatter students in Santiago, Chile, during a nationwide day of protests calling for improvements to the nation's schools. About 200 student protesters were arrested across the country.

Police use tear gas and water cannons to scatter students in Santiago, Chile, during a nationwide day of protests calling for improvements to the nation's schools. About 200 student protesters were arrested across the country. (Aliosha Marquez / Associated Press)